1 files changed, 59 insertions, 0 deletions
diff --git a/gr-blocks/python/qa_vco.py b/gr-blocks/python/qa_vco.py
new file mode 100644
index 0000000000..721eb9471b
--- /dev/null
+++ b/gr-blocks/python/qa_vco.py
@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+#
+# Copyright 2013 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+from gnuradio import gr, gr_unittest
+import blocks_swig
+import math
+
+def sig_source_f(samp_rate, freq, amp, N):
+    t = map(lambda x: float(x)/samp_rate, xrange(N))
+    y = map(lambda x: amp*math.cos(2.*math.pi*freq*x), t)
+    return y
+
+class test_vco(gr_unittest.TestCase):
+
+    def setUp (self):
+        self.tb = gr.top_block ()
+
+    def tearDown (self):
+        self.tb = None
+
+    def test_001(self):
+        src_data = 200*[0,] + 200*[0.5,] + 200*[1,]
+        expected_result = 200*[1,] + \
+            sig_source_f(1, 0.125, 1, 200) + \
+            sig_source_f(1, 0.25, 1, 200)
+
+        src = gr.vector_source_f(src_data)
+        op = blocks_swig.vco_f(1, math.pi/2.0, 1)
+        dst = gr.vector_sink_f()
+
+        self.tb.connect(src, op, dst)
+        self.tb.run()
+
+        result_data = dst.data()
+        self.assertFloatTuplesAlmostEqual(expected_result, result_data, 5)
+
+
+if __name__ == '__main__':
+    gr_unittest.run(test_vco, "test_vco.xml")
+